Improvement in lamps



H. F. HLDEBRAND & G. W. GAIN.

Lamp.

No. 21|,65s.- Patented 1an. 28,1879.

UNTTED STATES PATENT OFFICE.

HENRY F. HILDEBRAND AND GEORGE W. GAIN, OF BALTIMRE, MD.

lIMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 211,658, dated January 28, 1879; application tiled May 29, 1878.

To all 'whom it may concern:

Be it known that we, HENRY E. HILDE- BRAND and GEORGE WV. GAIN, of the city and county of Baltimore, and State of Maryland, have invented a new and useful Improvement in Lamps, which improvement is fully setforth in the following specification and accompanying drawing.

The object of our invention is to furnish a means by which coal-oil and other infiammable oils may be burned in lamps with safety from explosion and consequent fire and loss of life and propertyT thereby.

This end is fully accomplished in our invention.

In the drawing, A is a lamp proper. B is an air-space between the out-side ,elastic casing, C, and lamp A. C is an elastic casing of any shape or dimensions. I) is a ferrule by which the casing C is held in place around the stem of the lamp. /Ve do not claim any particular manner of fastening the bottom of casing, as it may be done as is most convenient.

E is an air-tube leading from air-space B to and over the wick-tube F. Gry G are tlanges around oollarof lamp, between which the casing C is held in place.

It will be readily, seen from this description that any concussion occasioned by a stroke or fall of-thc lamp expels Athe' air from the airspace B, through the tube E, over the flame, immediately extinguishing the same, thereby preventing any accident from tire or explosion What we claim, and desire to secure by Letters Patent of the United States, is-

rlhe combination, with a lamp, of the elastic casing C and the air-tube E, substantially as set forth.

HENRY F. HILDEBRAND. GEO. W. GAIN. Witnesses:

GEO. MCCAFFRAY, L. H. ROBINSON. 

